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Analog Devices Inc./Maxim Integrated MAX4659EUA-T
- Part No.:
- MAX4659EUA-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MAX4659EUA-T.pdf
- Description:
- IC SWITCH SPDT X 1 25OHM 8UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:1,191
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Product details
Overview
MAX4659EUA-T from Maxim Integrated is a single-pole/double-throw (SPDT) CMOS analog switch with 25Ω max on-resistance at ±15V, 75mA continuous current handling, and rail-to-rail signal capability across ±4.5V to ±20V dual supplies or +9V to +40V single supply - used in high-reliability audio routing and redundant backup systems where reed relay replacement is required.
For engineers reviewing the MAX4659EUA-T datasheet, MAX4659EUA-T pinout, MAX4659EUA-T application, or MAX4659EUA-T equivalent, key selection criteria include verified SPDT switching performance under ±15V operation, confirmed 1nA max off-leakage at +25°C, guaranteed 25Ω max RON, and thermal validation for µMAX package operation up to +85°C.
Technical Context
The MAX4659EUA-T implements a parallel N-channel/P-channel MOSFET switch architecture with body-drive sensing to eliminate voltage-drop limitations, enabling full rail-to-rail conduction without parasitic diode turn-on. It supports asymmetrical dual-supply operation (e.g., V+ = +12V, V− = −5V) within a 40V total range.
Its break-before-make timing is 5ns typical at ±15V with 300Ω/35pF load, and transition time is 85ns typical under same conditions. Charge injection is limited to 1.5pC, ensuring minimal signal disturbance in precision audio and test equipment signal paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance (RON) | 25Ω max at ±15V - ensures low insertion loss for 50Ω–600Ω audio and telecom loads |
| Continuous Switch Current | ±75mA - supports sustained drive of medium-power analog signals without derating |
| Off-Leakage Current | 1nA max at +25°C - preserves DC accuracy in high-impedance sensor or bias networks |
| Supply Range | ±4.5V to ±20V dual or +9V to +40V single - enables flexible integration into industrial and telecom power domains |
| Transition Time | 85ns typical - meets timing requirements for fast-switching test instrumentation and xDSL line drivers |
| Charge Injection | 1.5pC - minimizes glitch-induced error in sample-and-hold or multiplexed ADC front-ends |
| Bandwidth | 225MHz - supports wideband RF and video signal routing up to UHF frequencies |
Pinout & Package
MAX4659EUA-T is housed in an 8-pin µMAX package (U8-1 code) with exposed paddle thermally connected to V+ or left unconnected. The package measures 3.05mm × 3.05mm × 0.8mm and features 0.65mm pitch leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - COM | Analog common terminal | Switch output node shared by NC and NO paths; must handle full load current and rail-to-rail voltage swing |
| 2 - NC | Normally closed analog terminal | Connected to COM when IN = low; used for default-path signal continuity in fail-safe designs |
| 3 - GND | Digital ground reference | Reference for logic input and internal biasing; separate from analog signal ground in mixed-signal layouts |
| 4 - V+ | Positive supply input | Bias source for P-channel FETs and internal level shifters; exposed paddle may be bonded to this pin |
| 5 - N.C. | No connection | Internally unconnected silicon pad; must remain floating or tied to V+ per layout guidelines |
| 6 - IN | Digital control input | TTL/CMOS-compatible (VIH = 2.4V, VIL = 0.8V); controls SPDT state with no external pull-up required |
| 7 - V− | Negative supply input | Bias source for N-channel FETs; establishes lower rail for dual-supply operation and leakage control |
| 8 - NO | Normally open analog terminal | Connected to COM when IN = high; selected path for active signal routing in multiplexer applications |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail signal handling | Supports analog inputs from V− to V+ without clipping or distortion - critical for ±15V op-amp interfacing |
| 25Ω max on-resistance flatness | 1.5Ω max variation over full signal range at ±15V - maintains amplitude consistency across audio band |
| No VL supply required | Eliminates need for auxiliary logic supply - simplifies BOM and PCB routing in space-constrained µMAX layouts |
| 1nA max off-leakage at +25°C | Enables use in high-impedance medical sensor front-ends and precision calibration circuits |
| Break-before-make timing | 5ns typical - prevents momentary shorting between NC and NO paths during state transitions |
Applications
| Audio Signal Routing | Test Equipment Multiplexing |
|---|---|
Use Scenario: Selecting between primary and backup audio channels in professional mixing consoles. IC Role / Device Role / Timing Role: SPDT analog switch providing failover path selection with sub-10ns break-before-make timing. Use Value: Maintains signal integrity with 25Ω RON and 225MHz bandwidth while eliminating mechanical relay wear-out. |
Use Scenario: Routing DUT signals to multiple measurement instruments in automated test fixtures. IC Role / Device Role / Timing Role: High-current analog switch enabling 75mA continuous channel switching under ±15V supply. Use Value: Supports fast, repeatable channel changes without signal degradation or thermal drift over extended test cycles. |
| Redundant Power Path Control | xDSL Line Interface Protection |
Use Scenario: Managing switchover between main and backup DC power rails in telecom shelf controllers. IC Role / Device Role / Timing Role: NC/NO dual-path switch implementing hot-swap-capable redundancy with <1nA leakage. Use Value: Ensures zero-current interruption during fault recovery while blocking cross-talk between isolated power domains. |
Use Scenario: Protecting DSLAM line drivers from transient surges via configurable analog isolation paths. IC Role / Device Role / Timing Role: High-voltage SPDT switch operating up to ±20V to isolate damaged line pairs. Use Value: Delivers 25Ω RON and −70dB off-isolation at 1MHz to preserve signal fidelity during line diagnostics. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SPDT analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DG419DN-E3 | Higher 45Ω max RON at ±15V; 30mA continuous current rating | Limited to lower-current audio and sensor switching; not suitable for 75mA load paths | Select when cost sensitivity outweighs on-resistance and current requirements |
| MAX319ESA+ | Same pinout but 35Ω max RON; 40mA continuous current; no exposed paddle option | Lower thermal performance in high-duty-cycle applications; reduced peak current margin | Choose only if legacy board reuse mandates identical footprint without µMAX thermal enhancement |
Compared with DG419DN-E3 and MAX319ESA+, the MAX4659EUA-T delivers 44% lower on-resistance and double the continuous current capacity in the same 8-pin µMAX form factor, making it the preferred choice for high-fidelity, high-reliability analog routing where thermal stability and signal fidelity are design-critical.
Availability
MAX4659EUA-T is available at Aetrix Electronics and suitable for audio signal routing, test equipment multiplexing, and redundant power path control requiring stable component supply across industrial temperature ranges.
Supply support for MAX4659EUA-T includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Maxim Integrated (now part of Analog Devices) is a semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, communications, and consumer applications.
The MAX4659EUA-T belongs to Maxim's high-current analog switch product line, engineered specifically to replace electromechanical relays in demanding signal-routing applications requiring speed, longevity, and rail-to-rail operation.
FAQ
What is the maximum continuous current rating for MAX4659EUA-T?
The MAX4659EUA-T supports ±75mA continuous current through its COM, NO, and NC terminals under specified thermal conditions. This rating applies at TA = −40°C to +85°C with proper PCB copper pour and airflow. Exceeding this limit risks thermal shutdown or long-term parameter drift. The MAX4659EUA-T datasheet confirms this value in the Absolute Maximum Ratings table and Electrical Characteristics section for dual-supply operation.
Does MAX4659EUA-T require a separate logic supply (VL)?
No, the MAX4659EUA-T does not require a VL supply. Its digital input (IN) is TTL/CMOS compatible and operates directly from the main V+ and V− rails. The internal level-shifting circuitry eliminates need for auxiliary logic voltage, simplifying system power architecture. This feature is explicitly stated in the Features section and Pin Description table of the MAX4659EUA-T datasheet.
Can MAX4659EUA-T operate with asymmetric dual supplies?
Yes, the MAX4659EUA-T supports asymmetric dual-supply operation - for example, V+ = +12V and V− = −5V - as long as the total V+ to V− differential remains ≤40V and each supply stays within its absolute maximum rating (V+ to GND ≤ +44V, V− to GND ≥ −44V). This flexibility is documented in the General Description and Absolute Maximum Ratings sections of the MAX4659EUA-T datasheet.
What is the on-resistance flatness specification for MAX4659EUA-T?
The MAX4659EUA-T exhibits 1.5Ω max on-resistance flatness (RFLAT(ON)) over the full analog signal range when operated at ±15V supplies. This means the difference between maximum and minimum RON values across VCOM from V− to V+ is guaranteed ≤1.5Ω at +25°C. This parameter ensures consistent gain and minimal harmonic distortion in audio and instrumentation applications, as verified in the Electrical Characteristics table.
Is the exposed paddle on MAX4659EUA-T required to be connected?
The exposed paddle on the MAX4659EUA-T (µMAX package) may be connected to V+ for improved thermal performance or left unconnected - both configurations are validated in the datasheet. When tied to V+, it enhances power dissipation capability; when floating, it maintains standard thermal resistance. The Pin Description table explicitly states "EP: Exposed Paddle. Connect EP to V+ or leave unconnected," confirming design flexibility without functional impact.
MAX4659EUA-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Switch Circuit:
- SPDT
- Multiplexer/Demultiplexer Circuit:
- 2:1
- Number of Circuits:
- 1
- On-State Resistance (Max):
- 25Ohm
- Channel-to-Channel Matching (ΔRon):
- 400mOhm
- Voltage - Supply, Single (V+):
- 9V ~ 40V
- Voltage - Supply, Dual (V±):
- ±4.5V ~ 20V
- Switch Time (Ton, Toff) (Max):
- -
- -3db Bandwidth:
- 225MHz
- Charge Injection:
- 1.5pC
- Channel Capacitance (CS(off), CD(off)):
- 6pF
- Current - Leakage (IS(off)) (Max):
- 1nA
- Crosstalk:
- -76dB @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-uMAX/uSOP
MAX4659EUA-T FAQ
1.How can I place an order for MAX4659EUA-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4659EUA-T on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MAX4659EUA-T reliable?
The price and inventory of MAX4659EUA-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4659EUA-T is usually 5 days.
3.What payment methods are accepted for MAX4659EUA-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4659EUA-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4659EUA-T?
MAX4659EUA-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4659EUA-T order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MAX4659EUA-T?
For technical support, including MAX4659EUA-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4659EUA-T requirements.
6.How does Aetrix verify that MAX4659EUA-T is sourced from the original manufacturer or authorized distributors?
All MAX4659EUA-T products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MAX4659EUA-T meets industry standards.
7.What is the process for return or replacement of MAX4659EUA-T?
All MAX4659EUA-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4659EUA-T, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MAX4659EUA-T part is unused and in its original packaging.
Return procedure for MAX4659EUA-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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